It won't though, because there's a ecosystem of banking/insurance/whatever apps that have bought into the android/iphone lockdown mindsete that people will simply be locked out of. Open alternatives can grow when there is a viable means of slow growth, and cutting off the oxygen to such things is the implicit intent.
The best solution for this is to buy a $30 burner phone at Walmart and use it unactivated, tethered to your main de-Googled device. You can use the burner for only tasks requiring Play Integrity.
Make sure to leave one star reviews on all such apps that you run into.
In that case a two phone approach makes sense. I was willing to try that out, to give Ubuntu Touch a trial on my main phone. This might incentivise it even further for an off-ramp of the Google/Apple duopoly.
LMFAO what are you doing on your banking app all the time
> banking/insurance/whatever apps
I know banking apps are the typical example, but I've always wondered why. I use my bank's app maybe once or twice a year when I need to Zelle someone, which I only need to do when they don't have Venmo. (Unless we consider Venmo a banking app.)
I only have one bank's app installed, the rest of my banks I only interact with over their website, on desktop.
As for insurance, I've never had an insurance company's app installed.
Am I just an outlier here? Honestly, if I switched to a non standard OS, I'd be more annoyed about losing, say, Google Maps, Uber/Lyft, or various chat apps. Banking and insurance just don't come to mind at all as something I need my phone for.